This IP address has been reported a total of
10
times from
7 distinct
sources.
103.157.221.51 was first reported on
August 10th 2021 , and the most recent report was
2 hours ago Belarus
with 5
reports;
Germany
with 1
report;
Poland
with 1
report.
The most common categories in these recent reports were:
Port Scan
7
times;
IoT Targeted
1
time.
Recent Reports
We have received reports of abusive activity from this IP address within the last week. It is
potentially still actively engaged in abusive activities.
Reporter
IoA Timestamp (UTC)
Comment
Categories
🇵🇱
mkey
2026-10-25 19:00:07
(2 hours ago)
Verified scan activity detected by local IDS/firewall correlation. SCAN: HIGHRISK_SINGLEPORT | PORTS ...
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Verified scan activity detected by local IDS/firewall correlation. SCAN: HIGHRISK_SINGLEPORT | PORTS=23 | HITS=2 | IPSET=ADD | FIRST=2026-10-25 19:54:59 | LAST=2026-10-25 19:55:00. Last seen 2026-10-25 19:55:00.
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Port Scan
2026-10-25 13:21:35
(8 hours ago)
Unauthorized access (23/tcp/telnet) Targeted IoT device:Unknown (Probability:High)
Port Scan
IoT Targeted
🇧🇾
sashan
2026-10-22 16:15:05
(3 days ago)
2026-10-22T19:15:04.631702+03:00 gate kernel: nftables: JAIL-TELNET IN=wan OUT= MAC= SRC=103.157.221 ...
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2026-10-22T19:15:04.631702+03:00 gate kernel: nftables: JAIL-TELNET IN=wan OUT= MAC= SRC=103.157.221.51 DST=xxx.xxx.xxx.xxx LEN=60 TOS=0x00 PREC=0x00 TTL=51 ID=25762 DF PROTO=TCP SPT=42010 DPT=23 WINDOW=29040 RES=0x00 SYN URGP=0
...
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Port Scan
🇧🇾
stroytrest
2026-10-22 15:46:36
(3 days ago)
2026-10-22T18:46:35.875604+03:00 gate kernel: [1746285.765265] nftables: JAIL-TELNET IN=wan OUT= MAC ...
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2026-10-22T18:46:35.875604+03:00 gate kernel: [1746285.765265] nftables: JAIL-TELNET IN=wan OUT= MAC= SRC=103.157.221.51 DST=xxx.xxx.xxx.xxx LEN=60 TOS=0x00 PREC=0x00 TTL=51 ID=47382 DF PROTO=TCP SPT=54160 DPT=23 WINDOW=29040 RES=0x00 SYN URGP=0
...
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Port Scan
🇧🇾
stroytrest
2026-10-22 09:30:00
(3 days ago)
2026-10-22T12:29:59.627942+03:00 gate kernel: [1723689.517599] nftables: JAIL-TELNET IN=wan OUT= MAC ...
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2026-10-22T12:29:59.627942+03:00 gate kernel: [1723689.517599] nftables: JAIL-TELNET IN=wan OUT= MAC= SRC=103.157.221.51 DST=xxx.xxx.xxx.xxx LEN=60 TOS=0x00 PREC=0x00 TTL=51 ID=41514 DF PROTO=TCP SPT=33992 DPT=23 WINDOW=29040 RES=0x00 SYN URGP=0
...
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Port Scan
🇧🇾
sashan
2026-10-22 05:05:24
(3 days ago)
2026-10-22T08:05:24.640686+03:00 gate kernel: nftables: JAIL-TELNET IN=wan OUT= MAC= SRC=103.157.221 ...
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2026-10-22T08:05:24.640686+03:00 gate kernel: nftables: JAIL-TELNET IN=wan OUT= MAC= SRC=103.157.221.51 DST=xxx.xxx.xxx.xxx LEN=60 TOS=0x00 PREC=0x00 TTL=51 ID=14998 DF PROTO=TCP SPT=39504 DPT=23 WINDOW=29040 RES=0x00 SYN URGP=0
...
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Port Scan
🇧🇾
stroytrest
2026-10-22 02:56:46
(3 days ago)
2026-10-22T05:56:45.469418+03:00 gate kernel: [1700095.359075] nftables: JAIL-TELNET IN=wan OUT= MAC ...
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2026-10-22T05:56:45.469418+03:00 gate kernel: [1700095.359075] nftables: JAIL-TELNET IN=wan OUT= MAC= SRC=103.157.221.51 DST=xxx.xxx.xxx.xxx LEN=60 TOS=0x00 PREC=0x00 TTL=51 ID=52172 DF PROTO=TCP SPT=40444 DPT=23 WINDOW=29040 RES=0x00 SYN URGP=0
...
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Port Scan
2024-02-08 10:51:59
(2 years ago)
Unauthorized connection attempt
Port Scan
Hacking
Exploited Host
🇩🇪
Little Iguana
2022-08-17 02:52:47
(4 years ago)
trying to access non-authorized port
Port Scan
🇩🇪
IP Analyzer
2021-08-10 06:02:06
(5 years ago)
Unauthorized connection attempt from IP address 103.157.221.51 on Port 445(SMB)
Port Scan
Showing 1 to
10
of 10 reports
